MESON Chess Problem Database

Problem Display
PID: 132131 (2q4b/2pn1R2/6r1/5p1B/2N2k1B/p2P1N1p/KQ1p3r/4nbR1 w - - 0 1)

Casa, Alex

Bulletin Ouvrier des Echecs, 1952

2q4b/2pn1R2/6r1/5p1B/2N2k1B/p2P1N1p/KQ1p3r/4nbR1

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qxd2#
    • 1...Rg3
      • 2.Bxg3#
    • 1...Rg5
      • 2.Bxg5#
    • 1...Ra6
      • 2.Bg3#
      • 2.Bg5#
    • 1...Rb6
      • 2.Bg3#
      • 2.Bg5#
    • 1...Rc6
      • 2.Bg3#
      • 2.Bg5#
    • 1...Rd6
      • 2.Bg3#
      • 2.Bg5#
    • 1...Re6
      • 2.Bg3#
      • 2.Bg5#
    • 1...Rf6
      • 2.Bg3#
      • 2.Bg5#
      • 2.Qd4#
    • 1...Rh6
      • 2.Bg3#
      • 2.Bg5#
    • 1...Rg7
      • 2.Qd4#
    • 1...Be2
      • 2.Qxd2#
    • 1...Bg2
      • 2.Qxd2#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Se5
      • 2.Qd4#
    • 1...Sf6
      • 2.Qe5#
  • Keys
    • 1.Sg5!
      • threat
        • 2.Rg4#
      • 1...Rxg5
        • 2.Bxg5#
      • 1...d1Q
        • 2.Qxh2#
      • 1...d1B
        • 2.Qxh2#
      • 1...Rg2
        • 2.Sxh3#
      • 1...Rf6
        • 2.Qd4#
      • 1...Be2
        • 2.Qxd2#
      • 1...Bg2
        • 2.Qxd2#
      • 1...Bf6
        • 2.Se6#
      • 1...Sg2
        • 2.Rxf1#
      • 1...Se5
        • 2.Qd4#
      • 1...Sf6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(d);N_GUARD::QAB(C),XP(c)
    • R(i);N_GUARD::B(G),XR(i)
    • R(i);S_CUTB(m)::QAR2(C)
    • B(b);S_CUTR(d)::QAB(C),XP(c)
    • B(m);N_GUARD::QAR2(C),XB(m)
    • S(k);S_CUTB(m)::QAR2(C)
    • S(k);N_GUARD,N_SPINP(h),S_CUTB(m)::QAB1(C)
  • Actual
    • S(E);
    • Threat
      • R1(A)
    • Vars
      • R(i);OGATE,XS(E)::B(G),XR(i)
      • P(c);OGATE,P_PINQ(C)::QAB(C),XR(d)
      • R(d);N_GUARD,S_CUTB(b)::S(E),XP(f)
      • R(i);N_SPINP(h),S_CUTB(m)::QAR2(C)
      • B(b);S_CUTR(d)::QAB(C),XP(c)
      • B(m);N_SPINP(h),S_CUTR(i)::S(E)
      • S(a);N_GUARD,S_CUTR(d)::R(A),XB(b)
      • S(k);S_CUTB(m)::QAR2(C)
      • S(k);N_GUARD,N_SPINP(h),S_CUTB(m)::QAB1(C)
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